CVE-2024-50121

HIGHNVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2024-11-05. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

nfsd: cancel nfsd_shrinker_work using sync mode in nfs4_state_shutdown_net

In the normal case, when we excute echo 0 > /proc/fs/nfsd/threads, the function nfs4_state_destroy_net in nfs4_state_shutdown_net will release all resources related to the hashed nfs4_client. If the nfsd_client_shrinker is running concurrently, the expire_client function will first unhash this client and then destroy it. This can lead to the following warning. Additionally, numerous use-after-free errors may occur as well.

nfsd_client_shrinker echo 0 > /proc/fs/nfsd/threads

expire_client nfsd_shutdown_net unhash_client ... nfs4_state_shutdown_net /* won't wait shrinker exit */ /* cancel_work(&nn->nfsd_shrinker_work) * nfsd_file for this /* won't destroy unhashed client1 */ * client1 still alive nfs4_state_destroy_net */

nfsd_file_cache_shutdown /* trigger warning */ kmem_cache_destroy(nfsd_file_slab) kmem_cache_destroy(nfsd_file_mark_slab) /* release nfsd_file and mark */ __destroy_client

==================================================================== BUG nfsd_file (Not tainted): Objects remaining in nfsd_file on __kmem_cache_shutdown() -------------------------------------------------------------------- CPU: 4 UID: 0 PID: 764 Comm: sh Not tainted 6.12.0-rc3+ #1

dump_stack_lvl+0x53/0x70 slab_err+0xb0/0xf0 __kmem_cache_shutdown+0x15c/0x310 kmem_cache_destroy+0x66/0x160 nfsd_file_cache_shutdown+0xac/0x210 [nfsd] nfsd_destroy_serv+0x251/0x2a0 [nfsd] nfsd_svc+0x125/0x1e0 [nfsd] write_threads+0x16a/0x2a0 [nfsd] nfsctl_transaction_write+0x74/0xa0 [nfsd] vfs_write+0x1a5/0x6d0 ksys_write+0xc1/0x160 do_syscall_64+0x5f/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e

==================================================================== BUG nfsd_file_mark (Tainted: G B W ): Objects remaining nfsd_file_mark on __kmem_cache_shutdown() --------------------------------------------------------------------

dump_stack_lvl+0x53/0x70 slab_err+0xb0/0xf0 __kmem_cache_shutdown+0x15c/0x310 kmem_cache_destroy+0x66/0x160 nfsd_file_cache_shutdown+0xc8/0x210 [nfsd] nfsd_destroy_serv+0x251/0x2a0 [nfsd] nfsd_svc+0x125/0x1e0 [nfsd] write_threads+0x16a/0x2a0 [nfsd] nfsctl_transaction_write+0x74/0xa0 [nfsd] vfs_write+0x1a5/0x6d0 ksys_write+0xc1/0x160 do_syscall_64+0x5f/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e

To resolve this issue, cancel nfsd_shrinker_work using synchronous mode in nfs4_state_shutdown_net.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
The EG Score, 7.8 of 10.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

November 5, 2024

Last Modified

October 15, 2026

Advisory Details (9)

Auto-updated Oct 15, 2026
Patch available.
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4075-1] linux security update

https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4076-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
Web page

nfsd: cancel nfsd_shrinker_work using sync mode in nfs4_state_shutdown_net - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d5ff2fb2e7167e9483846e34148e60c0c016a1f6
Web page

nfsd: cancel nfsd_shrinker_work using sync mode in nfs4_state_shutdown_net - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/add1df5eba163a3a6ece11cb85890e2e410baaea
Web page

nfsd: cancel nfsd_shrinker_work using sync mode in nfs4_state_shutdown_net - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f965dc0f099a54fca100acf6909abe52d0c85328
Web page

nfsd: cancel nfsd_shrinker_work using sync mode in nfs4_state_shutdown_net - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/36775f42e039b01d4abe8998bf66771a37d3cdcc
Web page

nfsd: cancel nfsd_shrinker_work using sync mode in nfs4_state_shutdown_net - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5ade4382de16c34d9259cb548f36ec5c4555913c
Web page

nfsd: cancel nfsd_shrinker_work using sync mode in nfs4_state_shutdown_net - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f67138dd338cb564ade7d3755c8cd4f68b46d397

Vendor Advisories for CVE-2024-50121(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(26)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-realtime-hwe-24.04-edge (6.11.0-1005.5) @ oracular2026-10-15ubuntu
ubuntulinux-tools-oem-24.04b (6.11.0-1015.15) @ noble2026-10-15ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.135.133) @ jammy2026-10-15ubuntu
ubuntulinux-tools-kvm (5.15.0.1076.72) @ jammy2026-10-15ubuntu
ubuntulinux-tools-nvidia-tegra-rt (5.15.0.1033.33) @ jammy2026-10-15ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.136.147~20.04.1) @ focal2026-10-15ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1044.48) @ jammy2026-10-15ubuntu
ubuntulinux-tools-gcp-fips (5.15.0.1079.69) @ jammy2026-10-15ubuntu
ubuntulinux-tools-realtime (5.15.0.1080.83) @ jammy2026-10-15ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1074.77~20.04.1) @ focal2026-10-15ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1024.25~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-tools-azure-fde-edge (5.15.0.1086.95~20.04.1.61) @ focal2026-10-15ubuntu
ubuntulinux-tools-gkeop-6.8 (6.8.0-1010.12) @ noble2026-10-15ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1027.29~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1028.30~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-tools-realtime-hwe-24.04 (6.8.1-1020.21) @ noble2026-10-15ubuntu
ubuntulinux-tools-azure-nvidia (6.8.0-1014.15) @ noble2026-10-15ubuntu
ubuntulinux-tools-raspi (6.8.0-1028.32) @ noble2026-10-15ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1077.83~20.04.1) @ focal2026-10-15ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-58.60~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1081.90~20.04.1) @ focal2026-10-15ubuntu
ubuntulinux-tools-raspi-realtime (6.8.0-2023.24) @ noble2026-10-15ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.11.0-18.18) @ oracular2026-10-15ubuntu
redhatkernel-0:5.14.0-427.91.1.el9_42025-09-25redhat
redhatkernel-0:5.14.0-570.12.1.el9_62025-05-13redhat
linuxKernel @ 5.10.233 (fixes >=0)—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (44 versions)
  • every version up to 5.10.234-1: fixed in 5.10.234-1
—
linux-6.16.1.106-3~deb11u1, 6.1.106-3~deb11u2, 6.1.106-3~deb11u3, 6.1.112-1~deb11u1, 6.1.119-1~deb11u1
  • every version up to 6.1.128-1~deb11u1: fixed in 6.1.128-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (32 versions)
  • every version up to 6.1.123-1: fixed in 6.1.123-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.11.6-1: fixed in 6.11.6-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.11.6-1: fixed in 6.11.6-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(23)

Data Freshness Timeline

(refreshed 15× in last 7d / 38× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 91 of 205 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 9 repeat rows among the latest 100 are merged into the row they repeat. The 114 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-15 01:29 UTCVendor advisory
  2. 2026-10-15 01:29 UTCGHSA enrichmentGHSA-wrcm-3w95-9w36 · GitHub severity HIGH · GitHub CVSS 7.8
  3. 2026-10-15 01:08 UTCEG score recompute
  4. 2026-10-15 01:08 UTCVendor advisory
  5. 2026-10-15 01:08 UTCGHSA enrichmentGHSA-wrcm-3w95-9w36 · GitHub severity HIGH · GitHub CVSS 7.8
  6. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-10-13 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  8. 2026-10-12 17:41 UTCEG score recompute
  9. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-10-11 21:07 UTCEG score recompute
  11. 2026-10-11 15:59 UTCEG score recompute
  12. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  13. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  15. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  17. 2026-10-07 06:54 UTCOSV refresh
  18. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  19. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  20. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  21. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  22. 2026-10-02 16:15 UTCEG score recompute
  23. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  24. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  25. 2026-09-29 15:18 UTCEPSS rescoreEPSS 0.2% · 13th percentile
Show 66 more
  1. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-09-27 13:44 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  5. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  6. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  7. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  8. 2026-09-19 15:40 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  9. 2026-09-18 19:26 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  10. 2026-09-17 19:27 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  11. 2026-09-17 12:36 UTCOSV refresh
  12. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  13. 2026-09-16 05:12 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  14. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  15. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  16. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  17. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  18. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  19. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  20. 2026-09-08 21:58 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  21. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  22. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  23. 2026-09-04 13:59 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  24. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  25. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  26. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  27. 2026-09-01 04:37 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  28. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  29. 2026-08-30 01:20 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  30. 2026-08-29 13:13 UTCOSV refresh
  31. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  32. 2026-08-27 14:23 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  33. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  34. 2026-08-24 14:15 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  35. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  36. 2026-08-21 23:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  37. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  38. 2026-08-19 17:02 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  39. 2026-08-18 13:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  40. 2026-08-17 13:45 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  41. 2026-08-16 14:54 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  42. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  43. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  44. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  45. 2026-08-13 00:31 UTCOSV refresh
  46. 2026-08-12 13:49 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  47. 2026-08-11 13:40 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  48. 2026-08-10 23:58 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  49. 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  50. 2026-08-08 16:35 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  51. 2026-08-07 16:25 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  52. 2026-08-06 13:45 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  53. 2026-08-05 19:16 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  54. 2026-08-04 15:08 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  55. 2026-08-04 10:36 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  56. 2026-08-03 10:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  57. 2026-08-02 02:25 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  58. 2026-08-01 04:14 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  59. 2026-07-30 16:26 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  60. 2026-07-30 01:29 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  61. 2026-07-28 15:35 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  62. 2026-07-28 08:24 UTCOSV refresh
  63. 2026-07-27 14:11 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  64. 2026-07-26 14:53 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  65. 2026-07-25 14:16 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  66. 2026-07-24 14:16 UTCEPSS rescoreEPSS 0.2% · 14th percentile

Frequently asked(5)

What is CVE-2024-50121?
CVE-2024-50121 is a high-severity vulnerability; its CVE record was published on November 5, 2024. In the Linux kernel, the following vulnerability has been resolved: nfsd: cancel nfsdshrinkerwork using sync mode in nfs4stateshutdown_net In the normal case, when we excute echo 0 > /proc/fs/nfsd/threads, the function nfs4statedestroynet in nfs4stateshutdownnet will release all resources related…
When was the CVE record for CVE-2024-50121 published?
The CVE record for CVE-2024-50121 was published on November 5, 2024. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 15, 2026; the record at its source may have been updated since.
Is CVE-2024-50121 actively exploited?
CVE-2024-50121 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-50121?
CVE-2024-50121 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2024-50121?
A fix for CVE-2024-50121 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-50121 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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